iPadOS 11.4.1 (build 15G5054c) is an official Apple over-the-air update for the iPad Air 2 (WiFi), released on 2018-05-30T17:04:48Z. The update package is 211.68 MB. This is a delta (partial) update that requires 11.4 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: c0111fce745a1e5b03fb37a1c008a18ab6ac5ddb.zip.